Compatible Systems 5.4 manual AppleTalk Zone, Node

Chapter 4 - AppleTalk Routing & Bridging 81

problems. You should carefully track which AppleTalk network numbers are in use, and where they are used.

AppleTalk Zone

If you have set this interface to be a numbered interface, you must provide a zone name which will be associated with the network number entered above. Zone names may be up to 32 characters in length.

Typically a name is chosen which has some significance to the physical loca- tions connected by the VPN link. An example would be “NYC - Chicago VPN.”

This name will appear in the Chooser program of computers which support AppleTalk, but there will be no selectable AppleTalk devices in the zone.

Node

If you have set this interface to be a numbered interface, you must provide an AppleTalk node number in this field which is unique for the network number you entered above.

ϖ Note: Compatible Systems routers require the assignment of a unique AppleTalk node number for numbered interfaces.

>Update Method

VPN links which are configured to provide “dial-on-demand” service will bring a connection up (i.e. dial the other end) when there are network packets which must be transferred over the link. Once a dial-on-demand connection is up, network traffic passing across the link causes the inactivity timer for the link to be reset, keeping the connection up.

The AppleTalk RTMP protocol periodically sends out update information across a link. These periodic update packets will cause a VPN link set for dial-on-demand operation to either stay up indefinitely or to continuously dial, connect, and then drop the connection.

• If Triggered is selected with this pull-down menu, the router will modify the standard AppleTalk RTMP behavior for this interface to send Apple- Talk RTMP packets only when there has been an update to its routing table information, or when it has detected a change in the accessibility of the next hop router.

• If Periodic is selected with this pull-down menu, the router will use the standard AppleTalk RTMP protocol, which sends RTMP packets over the link every 10 seconds.